Maths MCQs, ASSISTANT PPSC (BPS - 16) 2016, PPSC Solved Past Papers MCQsWhich number is wrong in the series: 1, 2, 6, 15, 31, 56, 91.A. 31 B. 91 C. 56 D. 15 Fill in the blank. “Are there apples in kitchen?Fill in the blank: “It is ___ film that I have ever seen.”